Liomys irroratus

The Mexican spiny pocket mouse is a species of rodent in the family Heteromyidae. It is native to Mexico and Texas in the United States where it is found in dry, scrubby habitats. The IUCN has assessed it as being of "least concern". It was formerly placed in the genus Liomys, which is now recognized to be paraphyletic and has been subsumed into Heteromys.

Liomys irroratus

Juan Cruzado Cortés · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Also called
Mexican spiny pocket mousePBDB
Sits inside
LiomysPBDB
Diet
granivore, browserPBDB, for Heteromyidae
Life habit
ground dwellingPBDB, for Heteromyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 118 thousand years on record.

Every occurrence read is dated to somewhere between 129 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 3 of 3 occurrencesPleistoceneHolocene — about 0 of 3 occurrences147 ka–126 ka Mya — about 0.1 occurrences126 ka–105 ka Mya — about 0.5 occurrences105 ka–84 ka Mya — about 0.5 occurrences84 ka–63 ka Mya — about 0.5 occurrences63 ka–42 ka Mya — about 0.5 occurrences42 ka–21 ka Mya — about 0.5 occurrences21 ka–0 Mya — about 0.2 occurrences629 ka0 Mya

3 occurrences of Liomys irroratus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

3 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Liomys irroratus and its relatives

Pleistocene

Where Liomys irroratus and its relatives were recorded in the Pleistocene.

Found in the same rock

76 taxa

The Paleobiology Database records 3 sites for Liomys irroratus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

3 references

Each of the 3 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Liomys irroratus

Credit
Juan Cruzado Cortés
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Liomys irroratus alleni · UMMZ:mammals:120788

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itLiomys through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1868)